<template>
  <div>
    <!-- 商品分类三级列表 -->
    <typeNav />
    <div class="main">
      <div class="py-container">
        <!--bread 面包屑 带有x的结构的-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <a href="#">全部结果</a>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <!-- 分类的面包屑 -->
            <li class="with-x" v-if="searchParams.categoryName">{{searchParams.categoryName}}<i @click="removeCategoryName">x</i></li>
           <!-- 关键字的面包屑  -->
            <li class="with-x" v-if="searchParams.keyword">{{searchParams.keyword}}<i @click="removeKeyword">x</i></li>
            <!-- 品牌的面包屑 split(":")[1]是数组的切割方法，把Id切掉，只要name-->
            <li class="with-x" v-if="searchParams.trademark">{{searchParams.trademark.split(":")[1]}}<i @click="removeTradeMark">x</i></li>
            <!-- 平台售卖属性的属性值面包屑 -->
            <li class="with-x" v-for="(attrValue,index) in searchParams.props" :key="index">{{attrValue.split(":")[1]}}<i @click="removeAttr(index)">x</i></li>
          </ul>
        </div>

        <!--selector-->
        <SearchSelector @trademarkInfo="trademarkInfo" @attrInfo="attrInfo"/>

        <!--details-->
        <div class="details clearfix">
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <!-- 排序的结构 -->
              <ul class="sui-nav">
                 <li :class="{active:isOne}" @click="changeOrder('1')"><!--有类名的就有背景颜色 -->
                  <a>综合<span v-show="isOne" class="iconfont" :class="{'icon-caret-up':isAsc,'icon-arrow-down-filling':isDesc}"></span></a><!--有类名的就有箭头 -->
                </li>
                <li :class="{active:isTwo}" @click="changeOrder('2')">
                  <a>价格<span v-show="isTwo" class="iconfont" :class="{'icon-caret-up':isAsc,'icon-arrow-down-filling':isDesc}"></span></a>
                </li>
                
              </ul>
            </div>
          </div>
          <!-- 销售产品列表 -->
          <div class="goods-list">
            <ul class="yui3-g">
              <li
                class="yui3-u-1-5"
                v-for="(good, index) in goodsList"
                :key="good.id"
              >
                <div class="list-wrap">
                  <div class="p-img">
                    <!-- 在路由跳转的时候一定不能忘带id(params)参数 -->
                    <router-link :to="`/detail/${good.id}`">
                      <img v-lazy="good.defaultImg"/>
                    </router-link>
                      
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>{{ good.price }}.00</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <a
                      target="_blank"
                      href="item.html"
                      title="促销信息，下单即赠送三个月CIBN视频会员卡！【小米电视新品4A 58 火爆预约中】"
                      >Apple苹果iPhone {{ good.title }}</a
                    >
                  </div>
                  <div class="commit">
                    <i class="command">已有<span>2000</span>人评价</i>
                  </div>
                  <div class="operate">
                    <a
                      href="success-cart.html"
                      target="_blank"
                      class="sui-btn btn-bordered btn-danger"
                      >加入购物车</a
                    >
                    <a href="javascript:void(0);" class="sui-btn btn-bordered"
                      >收藏</a
                    >
                  </div>
                </div>
              </li>
            </ul>
          </div>
          <!-- 分页器 -->
         <Pagination :pageNo="searchParams.pageNo" :pageSize="searchParams.pageSize" :total="total" :continues="5" @getPageNo="getPageNo"></Pagination>
        </div>
      </div>
    </div>
  </div>
</template>

<script>

import SearchSelector from "./SearchSelector/SearchSelector";
import { mapGetters,mapState } from "vuex";
export default {
  name: "Search",

  components: {
    SearchSelector,
  },
  data() {
    //带给服务器的参数
    return {
      searchParams: {
        //一级分类id 
        category1Id: "",
        //二级分类id 
        category2Id: "",
        //三级分类if
        category3Id: "",
        //分类名字
        categoryName:"",
        //关键字
         keyword: "",
         //排序 初始状态应该是综合、降序
        order: "1:desc",
        //分页器用的，代表是当前第几页
        pageNo: 1 ,
        //代表每一页展示的数据个数
        pageSize: 3,
        //平台售卖属性操作带的参数
        props: [],
        //品牌
        trademark: "",
      },
    };
  },
  //另外的生命周期函数，在组件挂载完毕之前执行一次
  beforeMount(){
  //   //复杂的写法
    // this.searchParams.category1Id=this.$route.query.category1Id
    // this.searchParams.category2Id=this.$route.query.category3Id
  //   //Object.assign：Es6新增语法，合并对象，将括号里面对象的相同属性，赋属性值
    Object.assign(this.searchParams,this.$route.query,this.$route.params,this.keyword)
  },
  mounted() {
    //在发请求之前带给服务器参数【searchParams参数发送变化，有数值带给服务器】
    this.getDate();
  },
  computed: {
    //mapGetters里面的写法：传递的数组，因为getters计算是没有划分模块的【没有home，search之分】
    ...mapGetters(["goodsList"]),
    isOne(){
      return this.searchParams.order.indexOf('1')!=-1
    },
    isTwo(){
      return this.searchParams.order.indexOf('2')!=-1
    },
    isAsc(){
      return this.searchParams.order.indexOf('asc')!=-1
    },
    isDesc(){
      return this.searchParams.order.indexOf('desc')!=-1
    },
    //获取search模块展示产品一共多少数据
    ...mapState({
      total:state=>state.search.searchList.total
    })

  },
  methods: {
    //向服务器发请求获取search模块数据（根据参数不用返回不用的数据进行展示）
    //把请求数据封装成一个函数，当需要再调用的时候调用即可
    getDate() {
      this.$store.dispatch("getSearchList", this.searchParams);
    },
    //删除分类的名字
    removeCategoryName(){
      //带给服务器的参数说明可有可无，如果属性值为空还是会把字段带给服务器，但是变为undefined，字段不会带给服务器
         this.searchParams.categoryName=undefined
         this.searchParams.category1Id=undefined
         this.searchParams.category2Id=undefined
         this.searchParams.category3Id=undefined
         //把带给服务器的参数置空了，还要再次向服务器发请求
         this.getDate()
         //地址栏也需要更改 进行路由跳转  下面是在自己跳自己,只是没带参数,所以地址栏改了
         //删掉quey参数，params不删除
         if(this.$route.params){
         this.$router.push({name:"search",params:this.$route.params})
         }
         else{
           this.$router.push({name:"search"})
         }     
    },
    removeKeyword(){
      this.searchParams.keyword=undefined
      this.getDate()
      //通知兄弟组件Header清楚关键字
      this.$bus.$emit("clear")
      //路由跳转
      if (this.$route.query) {
        this.$router.push({ name: "search", query: this.$route.query })
      }
      else{
           this.$router.push({name:"search"})
         } 
     
    },
    //删除品牌信息
    removeTradeMark(){
      this.searchParams.trademark=undefined
      this.getDate()

    },
    //删除售卖的属性
    removeAttr(index){
      //再次整理参数
        this.searchParams.props.splice(index,1)
        //再次发请求
        this.getDate()
    },
    //自定义事件回调
    trademarkInfo(trademark){
      //整理品牌字段的参数  "Id:品牌名字"
      this.searchParams.trademark=`${trademark.tmId}:${trademark.tmName}`  //es6模板字符串
      //再次发请求
      this.getDate()
       
    },
    //自定义事件回调--获取当前第几页
    getPageNo(pageNo){
      //整理给服务器的参数
      this.searchParams.pageNo=pageNo
      //再次发请求
      this.getDate()
    },
    //手机平台属性地方回调函数（自定义事件）
    attrInfo(attr,attrValue){
      //attr:属性Id，属性名，attrValue:属性值
      //整理好参数格式 ["属性Id:属性值:属性名"]
      let props=`${attr.attrId}:${attrValue}:${attr.attrName}`//es6模板字符串
      //数组去重
      if(this.searchParams.props.indexOf(props)==-1){//==-1说明数组中无这个数据
        this.searchParams.props.push(props)//props是数组，用数组的push方法
      //再发请求
      }
      
      this.getDate()

  
    },
    //排序操作
    changeOrder(flag){
      //flag形参：代表用户点击的是综合（1），或者价格（2）
       //获取最开始的状态 
      let originOrder=this.searchParams.order
     //最开始的flag
      let originFlag=this.searchParams.order.split(":")[0]
      //最开始的asc或者desc
      let originSort=this.searchParams.order.split(":")[1]
      //准备一个新的order属性值
      let newOrder=''
      //判断点击的是综合
      if(flag==originFlag){
         newOrder=`${originFlag}:${originSort=='desc'?"asc":"desc"}`
      }else{
       //点击的是价格
         newOrder=`${flag}:${"desc"}`
      }
      //将newOrder赋予searchParams
      this.searchParams.order=newOrder
      //再次发请求
      this.getDate()
    }
  },
  //数据监听：监听组件实例身上的属性的属性值变化
  watch:{
    //监听路由的信息发生变化就再次发请求
    $route(newValue,oldValue){
      //再次发请求之前再次整理带给服务器的参数，因为之前是在beforeMount里面整理的
      Object.assign(this.searchParams,this.$route.query,this.$route.params,this.keyword)
      //再次发起ajax请求
      this.getDate()
      //每一次请求完毕，应该把响应的1，2，3级分类的id置空，让它接受下一次响应的1.2.3id
       this.searchParams.category1Id=''
       this.searchParams.category2Id=''
       this.searchParams.category3Id=''
    }
  }
};
</script>

<style lang="less" scoped>
.main {
  margin: 10px 0;

  .py-container {
    width: 1200px;
    margin: 0 auto;

    .bread {
      margin-bottom: 5px;
      overflow: hidden;

      .sui-breadcrumb {
        padding: 3px 15px;
        margin: 0;
        font-weight: 400;
        border-radius: 3px;
        float: left;

        li {
          display: inline-block;
          line-height: 18px;

          a {
            color: #666;
            text-decoration: none;

            &:hover {
              color: #4cb9fc;
            }
          }
        }
      }

      .sui-tag {
        margin-top: -5px;
        list-style: none;
        font-size: 0;
        line-height: 0;
        padding: 5px 0 0;
        margin-bottom: 18px;
        float: left;

        .with-x {
          font-size: 12px;
          margin: 0 5px 5px 0;
          display: inline-block;
          overflow: hidden;
          color: #000;
          background: #f7f7f7;
          padding: 0 7px;
          height: 20px;
          line-height: 20px;
          border: 1px solid #dedede;
          white-space: nowrap;
          transition: color 400ms;
          cursor: pointer;

          i {
            margin-left: 10px;
            cursor: pointer;
            font: 400 14px tahoma;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
          }

          &:hover {
            color: #28a3ef;
          }
        }
      }
    }

    .details {
      margin-bottom: 5px;

      .sui-navbar {
        overflow: visible;
        margin-bottom: 0;

        .filter {
          min-height: 40px;
          padding-right: 20px;
          background: #fbfbfb;
          border: 1px solid #e2e2e2;
          padding-left: 0;
          border-radius: 0;
          box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

          .sui-nav {
            position: relative;
            left: 0;
            display: block;
            float: left;
            margin: 0 10px 0 0;

            li {
              float: left;
              line-height: 18px;

              a {
                display: block;
                cursor: pointer;
                padding: 11px 15px;
                color: #777;
                text-decoration: none;
              }

              &.active {
                a {
                  background: #e1251b;
                  color: #fff;
                }
              }
            }
          }
        }
      }

      .goods-list {
        margin: 20px 0;

        ul {
          display: flex;
          flex-wrap: wrap;

          li {
            height: 100%;
            width: 20%;
            margin-top: 10px;
            line-height: 28px;

            .list-wrap {
              .p-img {
                padding-left: 15px;
                width: 215px;
                height: 255px;

                a {
                  color: #666;

                  img {
                    max-width: 100%;
                    height: auto;
                    vertical-align: middle;
                  }
                }
              }

              .price {
                padding-left: 15px;
                font-size: 18px;
                color: #c81623;

                strong {
                  font-weight: 700;

                  i {
                    margin-left: -5px;
                  }
                }
              }

              .attr {
                padding-left: 15px;
                width: 85%;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;

                a {
                  color: #333;
                  text-decoration: none;
                }
              }

              .commit {
                padding-left: 15px;
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;

                span {
                  font-weight: 700;
                  color: #646fb0;
                }
              }

              .operate {
                padding: 12px 15px;

                .sui-btn {
                  display: inline-block;
                  padding: 2px 14px;
                  box-sizing: border-box;
                  margin-bottom: 0;
                  font-size: 12px;
                  line-height: 18px;
                  text-align: center;
                  vertical-align: middle;
                  cursor: pointer;
                  border-radius: 0;
                  background-color: transparent;
                  margin-right: 15px;
                }

                .btn-bordered {
                  min-width: 85px;
                  background-color: transparent;
                  border: 1px solid #8c8c8c;
                  color: #8c8c8c;

                  &:hover {
                    border: 1px solid #666;
                    color: #fff !important;
                    background-color: #666;
                    text-decoration: none;
                  }
                }

                .btn-danger {
                  border: 1px solid #e1251b;
                  color: #e1251b;

                  &:hover {
                    border: 1px solid #e1251b;
                    background-color: #e1251b;
                    color: white !important;
                    text-decoration: none;
                  }
                }
              }
            }
          }
        }
      }

      .page {
        width: 733px;
        height: 66px;
        overflow: hidden;
        float: right;

        .sui-pagination {
          margin: 18px 0;

          ul {
            margin-left: 0;
            margin-bottom: 0;
            vertical-align: middle;
            width: 490px;
            float: left;

            li {
              line-height: 18px;
              display: inline-block;

              a {
                position: relative;
                float: left;
                line-height: 18px;
                text-decoration: none;
                background-color: #fff;
                border: 1px solid #e0e9ee;
                margin-left: -1px;
                font-size: 14px;
                padding: 9px 18px;
                color: #333;
              }

              &.active {
                a {
                  background-color: #fff;
                  color: #e1251b;
                  border-color: #fff;
                  cursor: default;
                }
              }

              &.prev {
                a {
                  background-color: #fafafa;
                }
              }

              &.disabled {
                a {
                  color: #999;
                  cursor: default;
                }
              }

              &.dotted {
                span {
                  margin-left: -1px;
                  position: relative;
                  float: left;
                  line-height: 18px;
                  text-decoration: none;
                  background-color: #fff;
                  font-size: 14px;
                  border: 0;
                  padding: 9px 18px;
                  color: #333;
                }
              }

              &.next {
                a {
                  background-color: #fafafa;
                }
              }
            }
          }

          div {
            color: #333;
            font-size: 14px;
            float: right;
            width: 241px;
          }
        }
      }
    }
  }
}
</style>